722926 has 4 divisors (see below), whose sum is σ = 1084392. Its totient is φ = 361462.

The previous prime is 722921. The next prime is 722933. The reversal of 722926 is 629227.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 722894 and 722903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (722921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 180730 + ... + 180733.

It is an arithmetic number, because the mean of its divisors is an integer number (271098).

2⁷²²⁹²⁶ is an apocalyptic number.

722926 is a deficient number, since it is larger than the sum of its proper divisors (361466).

722926 is a wasteful number, since it uses less digits than its factorization.

722926 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 361465.

The product of its digits is 3024, while the sum is 28.

The square root of 722926 is about 850.2505513083. The cubic root of 722926 is about 89.7493437050.

The spelling of 722926 in words is "seven hundred twenty-two thousand, nine hundred twenty-six".